LM2670SX-5.0 Allicdata Electronics

LM2670SX-5.0 Integrated Circuits (ICs)

Allicdata Part #:

LM2670SX-5.0TR-ND

Manufacturer Part#:

LM2670SX-5.0

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC REG BUCK 5V 3A TO263-7
More Detail: Buck Switching Regulator IC Positive Fixed 5V 1 Ou...
DataSheet: LM2670SX-5.0 datasheetLM2670SX-5.0 Datasheet/PDF
Quantity: 1000
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Voltage - Output (Min/Fixed): 5V
Base Part Number: LM2670
Supplier Device Package: DDPAK/TO-263-7
Package / Case: TO-263-8, D²Pak (7 Leads + Tab), TO-263CA
Mounting Type: Surface Mount
Operating Temperature: -40°C ~ 125°C (TJ)
Synchronous Rectifier: No
Frequency - Switching: 260kHz
Current - Output: 3A
Voltage - Output (Max): --
Series: SIMPLE SWITCHER®
Voltage - Input (Max): 40V
Voltage - Input (Min): 8V
Number of Outputs: 1
Output Type: Fixed
Topology: Buck
Output Configuration: Positive
Function: Step-Down
Part Status: Obsolete
Packaging: Tape & Reel (TR) 
Description

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The LM2670SX-5.0 is a DC-to-DC switching regulator that is specifically designed to provide a regulated output voltage of 5.0V at currents up to 3A. It is a monolithic 3-channel switching regulator designed to be used in a wide variety of applications including computers, portable electronics, telecommunications, automotive electronics and other power management systems. It is designed to provide an adjustable output voltage of 1.2V to 5.0V and features a high efficiency integrated power switch, low dropout voltage and low quiescent current.

The LM2670SX-5.0 utilizes a 3-channel control to achieve a regulated output voltage of 5.0V. The main switching channel consists of an N-channel MOSFET switch, a current limiter and a voltage regulator. The voltage regulator sets the output voltage at 5.0V and the MOSFET switch passes the current through in a pulse-width modulated (PWM) fashion to achieve high efficiency. The second and third channel control are comprised of a pulse frequency modulator (PFM) and a low dropout regulator (LDO) respectively. The PFM controls the frequency of the switching and the LDO ensures stability of the output by preventing overvoltage.

The LM2670SX-5.0\'s switching frequency is set at the factory and can range between 30kHz to 2MHz depending on the external components. The current limit is adjustable with an externa resistive divider and can range from 1A to 3A. The PWM and PFM circuits also feature built-in soft-start and negative voltage regulation as well as over-temperature protection. In addition, the device also features over-current protection, under-voltage lockout, and load current balancing. All of these features allow the device to provide reliable power for the duration of its use in either continuous or pulsed mode.

The LM2670SX-5.0 is ideal for applications where a regulated 5V output is required in a compact form factor. It is flexible enough to be used in many different circuits and has built-in protection from a wide range of possible faults. Its low quiescent current makes it suitable for portable applications, and its high efficiency and low dropout voltage make it suitable for almost any application. Additionally, it is compatible with both 3V and 5V logic, allowing it to be easily integrated into existing power systems.

In conclusion, the LM2670SX-5.0 is an excellent choice for a 5V voltage regulator in a number of applications. Its ability to be configured in a variety of ways makes it a versatile component that can meet many types of design requirements. Its small size, low quiescent current, high efficiency and low dropout voltage add to its appeal as an excellent choice for a DC-to-DC switch regulator.

The specific data is subject to PDF, and the above content is for reference

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